Makita DUC252 Bedienungsanleitung Seite 14

CAUTION:
• Do not tighten the saw chain too much.
Excessively high tension of saw chain may
cause breakage of saw chain, wear of the guide
bar and breakage of the adjusting dial.
• A chain which is too loose can jump off the bar,
and therefore presents an accident risk.
• Carry out the procedure of installing or removing
saw chain in a clean place free from sawdust
and the like.
Spike bumper (optional accessory)
► Fig.19
To install spike bumper, perform the following steps:
1. Remove the sprocket cover, saw chain and guide
bar as described in this instruction manual.
2. Place the spike bumper, with the spikes facing
upwards, so that its holes line up with the holes
provided on the chain saw.
3. Tighten the spike bumper with the two screws
provided.
OPERATION
CAUTION:
Do not cover vents, or it may cause
overheating and damage to the tool.
Lubrication
► Fig.20: 1. Oil tank cap 2. Oil inspection window ( for
refilling the tank with oil) 3. Oil inspection
window
Saw chain is automatically lubricated when the tool is
in operation.
Check the amount of remaining oil in the oil tank
through the oil inspection window.
To refill the tank, remove the cap from the oil tank
opening.
After refilling the tank, always screw the provided oil
tank cap on the chain saw.
CAUTION:
• When filling the chain saw with chain oil for the
first time, or refilling the tank after it has been
completely emptied, add oil up to the bottom
edge of the filler neck. The oil delivery may
otherwise be impaired.
• As a saw chain oil, use oil exclusively for Makita
chain saws or oil available in market.
• Never use oil including dust and particles or
volatile oil.
• When pruning trees, use botanical oil. Mineral
oil may harm trees.
• Never force the chain saw when pruning trees.
• Before cutting out, make sure that the provided
oil tank cap is screwed in place.
► Fig.21
Hold the chain saw away from the tree. Start it and wait
until lubrication on saw chain is adequate.
Bring the spike bumper into contact with the branch to
be cut before switching on. Otherwise it may cause the
guide bar to wobble, resulting in injury to operator.
Saw the wood to be cut by just moving it down.
WORKING WITH THE CHAIN SAW
Pruning trees
► Fig.22: 1. Spike bumper
CAUTION:
• Keep all parts of the body away from the saw
chain when the motor is operating.
• Hold the chain saw firmly with both hands when
the motor is running.
• Do not overreach. Keep proper footing and
balance at all times.
Bring the spike bumper into contact with the branch to
be cut before switching on. Cutting without bringing the
spike bumper into contact with the branch may cause
the guide bar to wobble, resulting in injury to operator.
► Fig.23
When cutting thick branches, first make a shallow
undercut and then make the finish cut from the top.
► Fig.24
If you try to cut off thick branches from the bottom, the
branch may close in and pinch the saw chain in the cut.
If you try to cut off thick branches from the top without a
shallow undercut, the branch may splinter.
► Fig.25
If you cannot cut the timber right through with a single
stroke:
Apply light pressure to the handle and continue saw-
ing and draw the chain saw back a little; then apply
the spike a little lower and finish the cut by raising the
handle.
Carrying tool
► Fig.26: 1. Guide bar cover 2. Battery cover
Always remove the battery cartridge from the tool and
overlap the guide bar with the guide bar cover before
carrying the tool. Also cover the battery cartridge with
the battery cover.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
the battery cartridge is removed before attempt-
ing to perform inspection or maintenance.
• Always wear gloves when performing any
inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
14 ENGLISH